[USGS Logo]
West Nile Virus
Mosquito
2014
Picture of Mosquito
USGS Logo Banner
West Nile Virus:  USA - Mosquito
Washington Washington Washington Montana Maine Maine North Dakota South Dakota Wyoming Wisconsin Wisconsin Idaho Vermont Minnesota Oregon New Hampshire Iowa Massachusetts Massachusetts Massachusetts Nebraska New York New York New York New York Pennsylvania Connecticut Rhode Island Rhode Island Rhode Island New Jersey Indiana Nevada Utah California California California California California Ohio Illinois District of Columbia Delaware West Virginia Maryland Maryland Maryland Maryland Colorado Kentucky Kentucky Kansas Virginia Virginia Virginia Missouri Arizona Oklahoma North Carolina North Carolina North Carolina North Carolina North Carolina North Carolina Tennessee Texas Texas Texas Texas Texas Texas New Mexico Alabama Mississippi Georgia Georgia South Carolina South Carolina Arkansas Louisiana Louisiana Louisiana Louisiana Florida Florida Florida Florida Florida Florida Florida Michigan Michigan Michigan Michigan Michigan
Map Scalebar 1000000 m
Cumulative 2014 Data as of 3 am, Sep 17, 2014*
These data are provisional and may be revised or adjusted in the future.
Arizona196
California2469
Colorado195
Connecticut57
Georgia23
Idaho62
Illinois916
Indiana105
Iowa5
Louisiana893
Maryland19
Massachusetts49
Michigan9
Minnesota19
Mississippi54
Missouri34
Montana12
Nebraska222
Nevada89
New Jersey303
New Mexico1
New York394
North Dakota6
Ohio313
Oklahoma5
Oregon30
Pennsylvania1245
Rhode Island2
South Dakota75
Tennessee418
Texas1777
Utah138
Vermont8
Virginia130
Washington80
West Virginia7
Wisconsin2
Wyoming11
Cumulative Total Entire Country: 10,373
NEW Dynamic Map Viewer
You can also navigate to Adjacent States by clicking on them.
Map Legend
* States and counties in yellow either did not perform surveillance or did not report any positive test results from their surveillance.